Hydroacoustic Surveys of the Distribution and Abundance of Krill

Hydroacoustic Surveys of the Distribution and Abundance of Krill PDF Author: I. R. Higginbottom
Publisher:
ISBN:
Category : Antarctic krill
Languages : en
Pages : 60

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Hydroacoustic Surveys of the Distribution and Abundance of Krill: Prydz Bay Region - FIBEX, ADBEX II and SIBEX II MV Nella Dan

Hydroacoustic Surveys of the Distribution and Abundance of Krill: Prydz Bay Region - FIBEX, ADBEX II and SIBEX II MV Nella Dan PDF Author: Australia. Antarctic Division
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Hydroacoustic Surveys of Fish Abundance and Distribution in Twin Lakes, Colorado

Hydroacoustic Surveys of Fish Abundance and Distribution in Twin Lakes, Colorado PDF Author: Richard E. Thorne
Publisher:
ISBN:
Category :
Languages : en
Pages : 14

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Hydroacoustic Surveys of the Distribution and Abundance of Fish in Lower Granite Reservoir, 1989-1990

Hydroacoustic Surveys of the Distribution and Abundance of Fish in Lower Granite Reservoir, 1989-1990 PDF Author:
Publisher:
ISBN:
Category : Fish populations
Languages : en
Pages : 0

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Biology and Ecology of Antarctic Krill

Biology and Ecology of Antarctic Krill PDF Author: Volker Siegel
Publisher: Springer
ISBN: 331929279X
Category : Science
Languages : en
Pages : 458

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Book Description
This book gives a unique insight into the current knowledge of krill population dynamics including distribution, biomass, production, recruitment, growth and mortality rates. Detailed analysis is provided on food and feeding, reproduction and krill behaviour. The volume provides an overview on the aspects of natural challenges to the species, which involve predation, parasites and the commercial exploitation of the resource and its management. A chapter on genetics shows the results of population subdivision and summarizes recent work on sequencing transcriptomes for studying gene function as part of the physiology of live krill. The focus of Chapter 4 is on physiological functions such as biochemical composition, metabolic activity and growth change with ontogeny and season; and will demonstrate which environmental factors are the main drivers for variability. Further discussed in this chapter are the bottle necks which occur in the annual life cycle of krill, and the mechanisms krill have adapted to cope with severe environmental condition.

Southern Ocean Ecology

Southern Ocean Ecology PDF Author: Sayed Z. El-Sayed
Publisher: Cambridge University Press
ISBN: 9780521443326
Category : Nature
Languages : en
Pages : 448

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Book Description
BIOMASS (Biological Investigations of Marine Antarctic Systems and Stocks) was a unique, large-scale, long-term, international research programme established in 1977 to investigate the ecology of the Southern Ocean. Its main aim was to gain a greater understanding of the biological systems and stocks in the marine Antarctic environment, thereby providing a sound basis for the future management of the living resources within this immense ocean. The programme was drawn to a close in 1991 and its completion marked by a colloquium which brought together key researchers to summarise and review the results obtained. This volume, arising from that colloquium, provides a succinct, state-of-the-art account of the ecology of the Southern Ocean and serves as a comprehensive record of this unique and successful international project.

Ross Sea Ecology

Ross Sea Ecology PDF Author: F.M. Faranda
Publisher: Springer Science & Business Media
ISBN: 364259607X
Category : Science
Languages : en
Pages : 594

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Book Description
The Antarctic represents the last of the world's still unexplored continents. Since 1985, Italy has sent 10 expeditions to this region, three of those have been exclusively devoted to research on the marine ecology of the Ross Sea region. This volume presents a global picture of this research. It includes contributions on water mass characteristics, particulate organic matter and nutrient utilization, and physiological aspects of primary production. Further topics are zooplankton, krill and top predator interactions in relation to physical and biological parameters, ecological features of coastal fish communities and the spatio-temporal variability of benthic biocenoses.

Krill

Krill PDF Author: Inigo Everson
Publisher: John Wiley & Sons
ISBN: 0470999489
Category : Technology & Engineering
Languages : en
Pages : 384

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Book Description
Krill, or euphausiids, a group of immense importance in marine ecosystems, comprises over 80 species, most of which are planktonic. Krill are widespread with species to be found in all the oceans of the world. Their numerical density in some regions increases their importance to marine ecosystems and has led to commercially successful krill harvesting. This comprehensive volume, thoroughly edited by Inigo Everson, well known for his work in this area, comprises chapters written by internationally acknowledged experts. The contents include coverage of: sampling and distribution, population, aggregation, reproduction and the role of krill in the ecosystem. Further specific chapters include krill harvesting, products and details of management in Japanese, Canadian and Southern Ocean waters. Drawing on the experience in each, the ecosystem approach to management is discussed in detail and how it might be applied more widely for example in forage fisheries. This most important volume draws together, for the first time, a vast amount of vital information for all those involved in work on these important marine organisms. Krill will be of great use to fisheries scientists, marine biologists and ecologists, oceanographers, zoologists and invertebrate biologists and all those involved in the commercial harvesting, exploitation and management of krill, world wide. Libraries in all aquatic and marine research stations and universities where marine and fisheries sciences are studied and taught should have multiple copies of this landmark publication on their shelves. Contributions from internationally-recognised experts in the field. Well-edited to provide an accessible and user-friendly book. Krill are a key part of ocean ecosystems. Part of exciting new Blackwell Science Series.

Antarctic Science

Antarctic Science PDF Author: Gotthilf Hempel
Publisher: Springer Science & Business Media
ISBN: 3642787118
Category : Science
Languages : en
Pages : 299

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Book Description
Public awareness of the importance of Antarctic research, particularly in relation to global problems, has increased. The book spans a broad spectrum of Antarctic science from the "ozone hole" to microbiology to the sea ice. The main focus is on the role of Antarctica and the Southern Ocean in the world climate system, e.g. the formation of sea ice and its relevance to ocean circulation, the biological pump in relation to CO2 release. The past climate history is revealed by the analysis of ice cores and sediments. Studies of plate tectonics and fossil records reach further back in earth history. Key words in the biological chapters are krill and the rich Antarctic benthos. Finally, the potential conflict between conservationists, researchers and tourists is discussed.

Significant intra-annual variability in krill distribution and abundance at South Georgia revealed by multiple acoustic surveys during 2000/01

Significant intra-annual variability in krill distribution and abundance at South Georgia revealed by multiple acoustic surveys during 2000/01 PDF Author: A.S. BRIERLEY
Publisher:
ISBN:
Category :
Languages : en
Pages :

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